Compound for sewer-pipes



UNIT D STATES DANIEL H. nonsnrr,

PATENT OFFICE.

OF CLINTON, IOWA.

COMPOUND FOR SEWER-PIPES, 8:.0.

-S1ECIFIGA'IION forming part of Letters Patent No. 244,988, dated August 2, 1881.

Application filed February 23, 1881. (No specimens.)

To all whom it may concern Be it known that I, DANIEL H. DORSET'I, of the city of Clinton, in the county of Clinton and State of Iowa, have invented certain new and useful Improvements in Compounds for Sewer-Pipes, Sidewalks, Well-Tubing, Flooring-Tiles, Mantel- Shelves, &c.; and I do hereby declare that the following is a full, clear, and exact description of theinvention, which will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to that class of compounds used to moldinto any desired form for pipes or walks, that will keep its shape under the influence of heat and cold, that may be made in any desired quantity and stored ready for use.

To prepare the compound, take four hundred (400) pounds of artificial or natural asphaltum, put it into a steam mixing-pan and subject it to three hundred and twenty (320) degrees of steam-heat. When the same is reduced to a boiling liquid add thereto twenty (20) pounds crude paraffine and mix thoroughly. Then take ten (10) pounds black oxide of manganese, five (5)pounds black lead, two (2) pounds sal-ammoniac, one'hundred (100) pounds fine silicious sand, and mix thoroughly in a dry state. Then put it into the steam mixing-pan with the asphaltum and paraffine. Mix thoroughly, adding thereto coarse sharp silicious sand, until. the mixture, at a temperature of three hundred and twenty (320) degrees Fahrenheit, is of the consistency of plastering-mortar, when it is ready to be molded into any form, and it will hold its'shape and resist the action of heat and cold, is tough, standing more compression or concussion than any stone or cement known,is impervious to moisture, (consequentlyfree from the action of frost,) is capable of resisting nearly the same pressure, both internal and external, as iron pipe, and is not affected by the action of acids, alkalies, or sewage.

Without the paratIine in this compound the asphaltum, in being subjected to the requisite heat, becomes too brittle, and the pipes do not come out sufliciently glazed. The paraffine possesses an oily property and will standthe requisite temperature and become perfectly soluble with the asphaltum, and is fully equal to the asphaltum in its resistance of the action of acids, alkalies, and sewage. The black oxide of manganese acts much more quickly as a tempering material when combined with black lead and sal-ammoniac, and, though somewhat more expensive than other articles, its action in the compound is much better, givin g the pipes a hard glassy ring, and rendering them non-porous and capable of resisting the action of extreme heat and cold without liability of cracking or springing out of shape.

What I claim as new, and desire to secure by Letters Patent, is-

The' herein-described composition of asphaltum, sand, parafiine, black oxide of manganese, black lead, and sal-ammoniac, in the proportions substantially as set forth, and for the purposes specified.

In testimony that I claim the foregoing as my own invention I affix my signature in presence of two witnesses.

DANIEL HANKS DORSETT.

Witnesses:

W. W. SANBORN, I. Mormon. 

